I got a comment on the last post from Ving Chun Kuen via my email:
“Toi Da? Can you give a simple description. His order/method seems interesting.”
Sifu Lam’s method (at least the one that came down to me) was to teach Bong Sau recoveries. You are attacked from a bad angle and throw up the “wrong” bong (your flank is exposed).
So you have reflex actions you put into your body to attack from this bad position immediately upon finding yourself there.
The order I gave was random. There are four possible Wing Chun responses to the situation, all attacks: Pak Da, Lap Da, Tan Da, or Toi Da.
You’ll do one and go from there.
For the bong to be “wrong,” the punch must be from the opposite arm. He punches with his left and I defend with my right arm as a bong (or vise versa). So in the case above (his left, my right), I turn toward my right while catching him by the wrist with my right hand (no thumb) and pull his arm across his body with my arm completely straight.
The ending position is good for a push with his arm straight, your arm straight, his facing offline, and putting your left hand on his left shoulder with your elbow down you can take position.